Polyclonal Antibodies
A comprehensive portfolio of high-purity polyclonal antibodies (pAbs), secondary antibodies, and normal animal sera designed for in vitro diagnostics (IVD) and research applications. Sourced from various host species (such as goat, rabbit, sheep, donkey, bovine, llama, and chicken), these antibodies are refined using affinity chromatography and cross-adsorption methodologies to minimize cross-reactivity and provide high specificity and sensitivity in detection assays.
Applications & Uses:
- Secondary antibody detection systems and assay signal amplification
- ELISA, CLIA, western blotting, and lateral flow assays
- Immunohistochemistry (IHC) and immunofluorescence assays
- Positive/negative controls and blocker formulations using normal animal sera
Polyclonal Product Categories (pAbs & Serum):
- Primary Polyclonal Antibodies: Purified immunoglobulins (such as Rabbit and Goat IgG)
- Secondary Detection Antibodies: Highly cross-absorbed anti-IgG (Goat, Donkey, Rabbit)
- Antibody Fragments: Divalent F(ab')2, Monovalent Fab, and Fc fragments
- Normal Animal Sera: Diluents and blockers (Goat, Rabbit, Mouse, Donkey, Sheep)
Benefits:
- Stable bulk supply: Sourced from established host breeding bases, ensuring consistent bulk availability and long-term supply security.
- Minimal cross-reactivity: Highly refined via cross-adsorption (solid-phase adsorption) against non-target immunoglobulins to eliminate non-specific background.
- Versatile formats: Available as whole IgG molecules or functional antibody fragments, such as F(ab')2, Fab, and Fc, to meet custom assay design requirements.
- Low optical background: Normal animal sera are delipidated to ensure clear baselines in optical microplate and membrane assays.
Performance Attributes:
- Provides high specificity and signal amplification with low cross-reactivity.
- Highly refined via affinity purification and cross-absorption to support stable assay baselines.
- Supports low non-specific background and high reproducibility across multiple diagnostic platforms.
Sub Category:
Antibodies/AntigensPhysical Properties:
| Appearance: | Clear to amber liquid, or white to off-white lyophilized solid |
|---|---|
| Solubility: | Completely miscible in physiological aqueous buffers |
| Molecular Weight: | Approximately 150,000 Daltons (IgG) |
Chemical Properties:
| Purity: | Equal to or greater than 95% by SDS-PAGE |
|---|---|
| Concentration: | 8 to 12 mg/mL for purified IgG, or 50 to 60 mg/mL for normal animal sera |
| Preservative: | Available with 0.1% sodium azide or in azide-free format |
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